[PATCH] py3: teach run-tests.py to handle exe with spaces when --local isn't specified

[Yuya Nishihara]

On Thu, 13 Dec 2018 00:24:41 -0500, Matt Harbison wrote:
> # HG changeset patch
> # User Matt Harbison <matt_harbison at yahoo.com>
> # Date 1544678327 18000
> #      Thu Dec 13 00:18:47 2018 -0500
> # Node ID bf9c96ebceeab2cbad25b2aac07c43eb48fbc664
> # Parent  008f3491dc5377e9e6f210e0a3f161323049db5d
> py3: teach run-tests.py to handle exe with spaces when --local isn't specified

> -        cmd = b'%s -c "import mercurial; print (mercurial.__path__[0])"'
> +        cmd = b'"%s" -c "import mercurial; print (mercurial.__path__[0])"'
>          cmd = cmd % PYTHON
>          if PYTHON3:
>              cmd = _strpath(cmd)
> -        pipe = os.popen(cmd)
> -        try:
> -            self._hgpath = _bytespath(pipe.read().strip())
> -        finally:
> -            pipe.close()
> +
> +        p = subprocess.Popen(cmd, stdout=subprocess.PIPE)

Added missing shell=True. Otherwise, the test runner would just fail.